This gear drives the infeed mechanism that transfers crop material into the threshing or separation system. It mounts on the drive shaft of the infeed conveyor and meshes with the mating sprocket to maintain synchronized rotation. A worn or damaged gear causes slip or irregular feeding, which reduces throughput and increases the risk of plugging. The manufacturer machines the tooth profile to match the original sprocket geometry, preserving the correct chain wrap and load distribution. On installation, verify that the chain tension is set to specification and that the retaining hardware is torqued correctly.